Home / 12,340.76-17,030.20-6,675.51

Finding the Fourth Proportional to 12,340.76, 17,030.20 and 6,675.51

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Solution

The fourth proportional to 12,340.76, 17,030.20 and 6,675.51 is: 9,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.76 : 17,030.20 = 6,675.51 : x
  2. Step 2: Convert to fraction form
    12,340.76/17,030.20 = 6,675.51/x
  3. Step 3: Cross multiply
    12,340.76x = 17,030.20 × 6,675.51
  4. Step 4: Simplify right side
    12,340.76x = 113,685,270.40
  5. Step 5: Solve for x
    x = 113,685,270.40/12,340.76
  6. Step 6: Final answer
    x = 9,212.18

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.